Mil-s-7720 mil spec 1st material response or astm a582, type 303 assn std 2nd material response overall
Mil-s-7720 mil spec single material response overall
Mil-s-7720,cond a,c or d mil spec 1st material response overall or mil-t-8506,ty 1a mil spec 2nd material response overall
Mil-s-7720 mil spec single material response overall